#10, HEALTHY DIET AND EXERCISE
What it is: An old-fashioned mix of the right foods and a reasonable amount of exercise.
Why it works: Think back to the food pyramid you learned about in first grade. An even mix of grains, proteins, dairy, fruit, vegetables and, yes, even sweets provides for a nutritionally balanced meal. Exercise, too, releases endorphins and keeps the body in shape, while combating diseases, managing weight, boosting energy levels and enhancing sexual drive.
What the experts say: “Absolutely the best approach is a healthy diet, and I don’t think that can be emphasized enough,” says Saint Louis University researcher Edward Weiss. Of course, there is no way to pinpoint the exact effects of this sort of regimen. “Certainly watch your weight, exercise, try to minimize stress—all of those things will work together but it's not like where you’re giving something or doing some manipulating and you really can see that it has a marked effect,” says Arlan Richardson, director of Oklahoma State University’s Barshop Center for Longevity and Aging Studies.